fsnotify: remove .should_send_event callback

After removing event structure creation from the generic layer there is
no reason for separate .should_send_event and .handle_event callbacks.
So just remove the first one.

Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Eric Paris <eparis@parisplace.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --cc fs/notify/dnotify/dnotify.c
Simple merge

diff --cc fs/notify/fanotify/fanotify.c
Simple merge

diff --cc fs/notify/fsnotify.c
Simple merge

diff --cc fs/notify/inotify/inotify_fsnotify.c
Simple merge

diff --cc include/linux/fsnotify_backend.h
Simple merge

diff --cc kernel/audit_tree.c
Simple merge

diff --cc kernel/audit_watch.c
Simple merge